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Release 4.14 drivers/mfd/tps65086.c

Directory: drivers/mfd
/*
 * Copyright (C) 2015 Texas Instruments Incorporated - http://www.ti.com/
 *      Andrew F. Davis <afd@ti.com>
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
 *
 * This program is distributed "as is" WITHOUT ANY WARRANTY of any
 * kind, whether expressed or implied; without even the implied warranty
 * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License version 2 for more details.
 *
 * Based on the TPS65912 driver
 */

#include <linux/i2c.h>
#include <linux/interrupt.h>
#include <linux/mfd/core.h>
#include <linux/module.h>

#include <linux/mfd/tps65086.h>


static const struct mfd_cell tps65086_cells[] = {
	{ .name = "tps65086-regulator", },
	{ .name = "tps65086-gpio", },
};


static const struct regmap_range tps65086_yes_ranges[] = {
	regmap_reg_range(TPS65086_IRQ, TPS65086_IRQ),
	regmap_reg_range(TPS65086_PMICSTAT, TPS65086_SHUTDNSRC),
	regmap_reg_range(TPS65086_GPOCTRL, TPS65086_GPOCTRL),
	regmap_reg_range(TPS65086_PG_STATUS1, TPS65086_OC_STATUS),
};


static const struct regmap_access_table tps65086_volatile_table = {
	.yes_ranges = tps65086_yes_ranges,
	.n_yes_ranges = ARRAY_SIZE(tps65086_yes_ranges),
};


static const struct regmap_config tps65086_regmap_config = {
	.reg_bits = 8,
	.val_bits = 8,
	.cache_type = REGCACHE_RBTREE,
	.volatile_table = &tps65086_volatile_table,
};


static const struct regmap_irq tps65086_irqs[] = {
	REGMAP_IRQ_REG(TPS65086_IRQ_DIETEMP, 0, TPS65086_IRQ_DIETEMP_MASK),
	REGMAP_IRQ_REG(TPS65086_IRQ_SHUTDN, 0, TPS65086_IRQ_SHUTDN_MASK),
	REGMAP_IRQ_REG(TPS65086_IRQ_FAULT, 0, TPS65086_IRQ_FAULT_MASK),
};


static struct regmap_irq_chip tps65086_irq_chip = {
	.name = "tps65086",
	.status_base = TPS65086_IRQ,
	.mask_base = TPS65086_IRQ_MASK,
	.ack_base = TPS65086_IRQ,
	.init_ack_masked = true,
	.num_regs = 1,
	.irqs = tps65086_irqs,
	.num_irqs = ARRAY_SIZE(tps65086_irqs),
};


static const struct of_device_id tps65086_of_match_table[] = {
	{ .compatible = "ti,tps65086", },
	{ /* sentinel */ }
};
MODULE_DEVICE_TABLE(of, tps65086_of_match_table);


static int tps65086_probe(struct i2c_client *client, const struct i2c_device_id *ids) { struct tps65086 *tps; unsigned int version; int ret; tps = devm_kzalloc(&client->dev, sizeof(*tps), GFP_KERNEL); if (!tps) return -ENOMEM; i2c_set_clientdata(client, tps); tps->dev = &client->dev; tps->irq = client->irq; tps->regmap = devm_regmap_init_i2c(client, &tps65086_regmap_config); if (IS_ERR(tps->regmap)) { dev_err(tps->dev, "Failed to initialize register map\n"); return PTR_ERR(tps->regmap); } ret = regmap_read(tps->regmap, TPS65086_DEVICEID, &version); if (ret) { dev_err(tps->dev, "Failed to read revision register\n"); return ret; } dev_info(tps->dev, "Device: TPS65086%01lX, OTP: %c, Rev: %ld\n", (version & TPS65086_DEVICEID_PART_MASK), (char)((version & TPS65086_DEVICEID_OTP_MASK) >> 4) + 'A', (version & TPS65086_DEVICEID_REV_MASK) >> 6); ret = regmap_add_irq_chip(tps->regmap, tps->irq, IRQF_ONESHOT, 0, &tps65086_irq_chip, &tps->irq_data); if (ret) { dev_err(tps->dev, "Failed to register IRQ chip\n"); return ret; } ret = mfd_add_devices(tps->dev, PLATFORM_DEVID_AUTO, tps65086_cells, ARRAY_SIZE(tps65086_cells), NULL, 0, regmap_irq_get_domain(tps->irq_data)); if (ret) { regmap_del_irq_chip(tps->irq, tps->irq_data); return ret; } return 0; }

Contributors

PersonTokensPropCommitsCommitProp
Andrew F. Davis285100.00%1100.00%
Total285100.00%1100.00%


static int tps65086_remove(struct i2c_client *client) { struct tps65086 *tps = i2c_get_clientdata(client); regmap_del_irq_chip(tps->irq, tps->irq_data); return 0; }

Contributors

PersonTokensPropCommitsCommitProp
Andrew F. Davis35100.00%1100.00%
Total35100.00%1100.00%

static const struct i2c_device_id tps65086_id_table[] = { { "tps65086", 0 }, { /* sentinel */ } }; MODULE_DEVICE_TABLE(i2c, tps65086_id_table); static struct i2c_driver tps65086_driver = { .driver = { .name = "tps65086", .of_match_table = tps65086_of_match_table, }, .probe = tps65086_probe, .remove = tps65086_remove, .id_table = tps65086_id_table, }; module_i2c_driver(tps65086_driver); MODULE_AUTHOR("Andrew F. Davis <afd@ti.com>"); MODULE_DESCRIPTION("TPS65086 PMIC Driver"); MODULE_LICENSE("GPL v2");

Overall Contributors

PersonTokensPropCommitsCommitProp
Andrew F. Davis642100.00%1100.00%
Total642100.00%1100.00%
Directory: drivers/mfd
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